SCHOTT GOETHEGLAS - restoration glass for the 18th & 19th century

GOETHEGLAS is a colorless, drawn glass with the irregular surface characteristic of window glass common to the 18th and 19th centuries. It can also be used to protect precious, leaded glazing from the elements and other adverse environmental conditions.

Restoration glass used in the orangerie in the castle of Schwerin - Germany

Summary:

GOETHEGLAS for buildings from the 18th and 19th centuries

irregular surface

also available with enhanced UV protection

a wide variety of processing options (e.g. as laminated glass, with coatings or as insulating glass units)

GEOTHEGLAS is produced through the Fourcault process, the first fully mechanised process for the continual manufacture of sheet glass with its first industrial plants in 1914.

In this process, molten glass is drawn through the Fourcault nozzle that produces the distinctive appearance of machine-drawn glass with a certain thickness tolerance and wavy surface.

Production of SCHOTT restoration glass by machine up-draw process

preparation of batch

fill-in of batch

glass melting

up-draw process

cooling down

edge cutting

Dimensions GOETHEGLAS

Max. dimensions*

2,100 x 1,500 mm

Standard thickness*

4.5 mm

Light transmission rate:

> 90%

*Other dimensions and thicknesses available upon request

Restoration glasses with ETA approval

ETA or abZ

As part of European harmonisation, the customary abZ (Germany’s national technical approval) is used only nationally when no European harmonised specifications are available.

The ETA (European Technical Assessment) replaces the abZ for member states of the European Union.

The point of contact for both certifications is the Deutsches Institut für Bautechnik (DIBt – German institute for construction technology).

ETA

Glass produced according to SCHOTT’s special Fourcault drawn-glass process is not covered by the usual glass standards. Products using this process are therefore also not subject to automatic regulation.

Customer benefits

Customers can be assured that SCHOTT Fourcault glass can be processed into standard construction products (such as toughened safety glass, laminated safety glass, laminated glass and insulating glass units) in accordance with standards and can be designated as such.

No more time-consuming documentation and approval procedures.

Processing options can be clearly communicated to customers using familiar terminology.